AutoCodes – KIA – B1390 KIA

B1390 KIA Code - Passenger Seat Track Position Sensor Short Or Short To Ground

Quick Answer

The Seat Track Position Sensor (STPS) located underneath the occupant seat detects the horizontal position of the occupant seat and delivers it to the Supplemental Restraint System Control Module (SRSCM). Common causes include Faulty Passenger Seat Track Position Sensor, Passenger Seat Track Position Sensor harness is open or shorted, Passenger Seat Track Position Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B1390 KIA indicates Passenger Seat Track Position Sensor Short Or Short To Ground.
Common causes: Common causes include Faulty Passenger Seat Track Position Sensor, Passenger Seat Track Position Sensor harness is open or shorted, Passenger Seat Track Position Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,265

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1390 KIA Description

The Seat Track Position Sensor (STPS) located underneath the occupant seat detects the horizontal position of the occupant seat and delivers it to the Supplemental Restraint System Control Module (SRSCM). The signal of STPS is one of the major parameters that determine the way dual output type airbag deploys. The SRSCM sets the Diagnostic Trouble Code (DTC) if it detects that the Seat Track Position Sensor is not to factory specifications.

OBDII Code B1390 KIA - Passenger Seat Track Position Sensor Short Or Short To Ground - AutoCodes.com — B1390 KIA Code - Passenger Seat Track Position Sensor Short Or Short To Ground

What does this mean?

What are the Possible Causes of the DTC B1390 KIA?

Faulty Passenger Seat Track Position Sensor
Passenger Seat Track Position Sensor harness is open or shorted
Passenger Seat Track Position Sensor circuit poor electrical connection
Faulty Supplemental Restraint System Control Module (SRSCM)

How to Fix the DTC B1390 KIA?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1390 KIA code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B1390 KIA code?

Need more information on how to fix the B1390 KIA code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1390 KIA code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1390 KIA Code

1. What are common symptoms of OBDII code B1390 KIA (Passenger Seat Track Position Sensor Short Or Short To Ground)?

- Common symptoms include the airbag warning light illuminating on the dashboard, loss of power seat functionality, and potential issues with the passenger airbag system.

2. What can cause the OBDII code B1390 in a KIA vehicle?

- The code B1390 in a KIA is typically caused by a short circuit or a connection problem in the passenger seat track position sensor, leading to a short or short to ground.

3. How serious is the OBDII code B1390 related to the Passenger Seat Track Position Sensor Short in a KIA?

- The code B1390 related to the passenger seat track position sensor short is considered a serious issue as it can affect the proper functioning of the airbag system and compromise passenger safety.

4. Can I continue driving my KIA with the B1390 OBDII code?

- It is not recommended to drive your KIA with the B1390 code present, as it indicates a fault in the passenger seat track position sensor that could potentially affect the airbag deployment in case of an accident.

5. How can I diagnose and repair the OBDII code B1390 in my KIA for the Passenger Seat Track Position Sensor Short?

- Diagnosing and repairing the B1390 code in a KIA typically involves inspecting the wiring and connections related to the passenger seat track position sensor, repairing any shorts or loose connections, and resetting the fault code.

6. Is it possible to fix the OBDII code B1390 related to the Passenger Seat Track Position Sensor Short at home?

- While some DIY enthusiasts may attempt to diagnose and repair the B1390 code at home, it is recommended to seek professional assistance to ensure the proper diagnosis and repair of the issue.

7. Will resetting the OBDII code B1390 in my KIA resolve the issue temporarily?

- Resetting the B1390 code may temporarily clear the fault code, but if the underlying issue with the passenger seat track position sensor short is not fixed, the code is likely to reappear.

8. Are there any safety precautions to take when working on the Passenger Seat Track Position Sensor Short issue in a KIA?

- When working on the passenger seat track position sensor or related wiring, it is important to disconnect the vehicle's battery to prevent accidental airbag deployment and follow proper safety procedures outlined in the vehicle's manual.

9. How can I prevent the OBDII code B1390 from occurring again in my KIA?

- To prevent the B1390 code from occurring again, it is essential to regularly inspect the wiring and connections related to the passenger seat track position sensor for any signs of damage or wear and address any issues promptly.

10. Can a faulty Passenger Seat Track Position Sensor Short affect other systems in my KIA?

- A faulty passenger seat track position sensor short can primarily affect the airbag system in your KIA, but it may also impact other electronic systems that rely on accurate seat position data.